Fluke 1625 Advanced GEO Earth Ground Tester

Fluke 1625 Advanced GEO Earth Ground Tester

Our Item Number: E608-1664
Manufacturer: Fluke Corporation
Manufacturer Item #: 2571664
Product Type: Ground Resistance Testers


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You don't need earth ground stakes with the Fluke 1625 Advanced GEO Earth Ground Tester!

Features & Applications:

The Fluke 1625 is a distinctive earth ground tester that can perform all four types of earth ground measurement. Specifically, the tester is able to measure earth ground loop resistances using only clamps – called Stakeless testing. This method doesn't require the use of earth ground stakes or the disconnection of ground rods.

Testing Methods:

  • 3- and 4-Pole Fall of Potential – standard earth ground testing using two ground stakes
  • 4-Pole Soil Resistivity testing – determine soil resistivity using four ground stakes
  • Selective testing – without disconnecting ground rods, a technician can measure ground resistance using a combination of stakes and a clamp.
  • Stakeless testing – innovative solution using only clamps, instead of ground stakes, to measure earth ground loop resistance.

Features:

  • Automatic Frequency Control (AFC) – identifies existing interference and chooses a measurement frequency to minimize its effect, providing a more accurate earth ground value.
  • R* measurement – calculates earth ground impedance at 55 Hz to more accurately reflect the earth ground resistance that a fault-to-earth ground would see.
  • Adjustable limits – for quick test result verification.
  • 3- and 4-pole earth ground measurement
  • 4-Pole soil resistivity testing
  • 2-pole resistance measurement AC
  • 2- and 4-pole resistance measurement DC
  • Selective testing, no disconnection of ground conductor (1 clamp)
  • Stakeless testing, quick ground loop testing (2 clamps)
  • Measuring voltage switchable 20/48V
  • Programmable limits, settings
  • Continuity with buzzer

Spec Summary:

RA 3-pole ground resistance measurement (IEC 1557-5)

Measuring Voltage:

Vm = 20/48 V ac

Short circuit current:

250 mA ac

Measure frequency:

94, 105, 111, 128Hz

Resolution:

0.001 Ω to 100 Ω

Measuring range:

0.001 Ω to 299.9 kΩ

Intrinsic error:

± (2 % of reading + 2 d)

Operating error:

± (5 % of reading + 5 d)
RA 4-pole ground resistance measurement (IEC 1557-5)
Measuring Voltage:
Vm = 20/48 V ac
Short circuit current:
250 mA ac
Measure frequency:
94, 105, 111, 128Hz
Resolution:
0.001 Ω to 100 Ω
Measuring range:
0.001 Ω to 299.9 kΩ
Intrinsic error:
± (2 % of reading + 2 d)
Operating error:
± (5 % of reading + 5 d)
RA 3-pole ground resistance measurement with current clamp
Measuring Voltage:
Vm = 20/48 V ac
Short circuit current:
250 mA ac
Measure frequency:
94, 105, 111, 128Hz
Resolution:
0.001 Ω to 10 Ω
Measuring range:
0.001 Ω to 29.99 kΩ
Intrinsic error:
± (7 % of reading + 2 d)
Operating error:
± (10 % of reading + 5 d)
RA 4-pole selective ground resistance measurement with current clamp
Measuring Voltage:
Vm = 20/48 V ac
Short circuit current:
250 mA ac
Measure frequency:
94, 105, 111, 128Hz
Resolution:
0.001 Ω to 10 Ω
Measuring range:
0.001 Ω to 29.99 kΩ
Intrinsic error:
± (7 % of reading + 2 d)
Operating error:
± (10 % of reading + 5 d)
Stakeless ground loop measurement
Measuring Voltage:
Vm = 20/48 V ac
Measure frequency:
94, 105, 111, 128Hz
Noise current (Iext):
Max. Iext = 3 A
Resolution:
0.001 Ω to 10 Ω
Measuring range:
0.001 Ω to 29.99 kΩ
Intrinsic error:
± (7 % of reading + 2 d)
Operating error:
± (10 % of reading + 5 d)
Environmental Specifications
14 to 122°F (-10 to +50°C)
32 to 95°F (0 to +35°C)
64.4 to 82.4°F (+18 to +28°C)
-22 to 140°F (-30 to +60°C)
C1 (IEC 654-1), 23 to 113°F (-5 to + 45°C), 5 to 95 % RH
IP56 for case, IP40 for battery door according to EN 60529
Safety Specifications
CAT II, 300 V
Mechanical & General Specifications
Display:
2999 Digit LCD – 7 segment liquid crystal display with special symbols and backlight
Size:
133 mm x 187 mm x 250 mm
Weight:
1.1 kg (including batteries)
Warranty:
Two years
Battery Life:
Typical 3000 measurements (RE+RH ≤ 1 kΩ)
Typical 6000 measurements (RE+RH ≤ 10 kΩ)